Finding the Fourth Proportional to 59,478.84, 89,123.58 and 31,397.88

Step by Step Solution

1. Step 1: Write the proportion equation
   59,478.84 : 89,123.58 = 31,397.88 : x
2. Step 2: Convert to fraction form
   59,478.84/89,123.58 = 31,397.88/x
3. Step 3: Cross multiply
   59,478.84x = 89,123.58 × 31,397.88
4. Step 4: Simplify right side
   59,478.84x = 2,798,291,470.01
5. Step 5: Solve for x
   x = 2,798,291,470.01/59,478.84
6. Step 6: Final answer
   x = 47,046.84